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Finding the Fourth Proportional to 5,665.71, 8,498.97 and 1,967.88

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Solution

The fourth proportional to 5,665.71, 8,498.97 and 1,967.88 is: 2,951.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,665.71 : 8,498.97 = 1,967.88 : x
  2. Step 2: Convert to fraction form
    5,665.71/8,498.97 = 1,967.88/x
  3. Step 3: Cross multiply
    5,665.71x = 8,498.97 × 1,967.88
  4. Step 4: Simplify right side
    5,665.71x = 16,724,953.08
  5. Step 5: Solve for x
    x = 16,724,953.08/5,665.71
  6. Step 6: Final answer
    x = 2,951.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.